Which Keyboard Shortcut Will Select Everything

Explore the universal 'select all' shortcut across Windows and macOS, why Ctrl+A and Cmd+A work in most apps, and how to implement or customize it in code.

Shortcuts Lib Team

February 6, 2026·5 min read

Keyboard Shortcuts Windows Shortcuts Select All Mac Shortcuts

Select All Shortcut - Shortcuts Lib — Photo by Tung Nguyen on Unsplash

Quick AnswerDefinition

Use Ctrl+A on Windows and Linux, or Cmd+A on macOS, to select all text in the active field or document. This universal shortcut is supported in most editors, browsers, and dialogs, and it lets you quickly copy, cut, or replace everything without manually highlighting in any field across apps today.

The universal select-all shortcut across operating systems

For keyboard-driven editing, a single keystroke can save dozens of repetitive clicks. The universal shortcut to select all content is OS-dependent: Ctrl+A on Windows and Linux, Cmd+A on macOS. This consistency across apps reduces cognitive load and speeds up editing, copying, and replacing operations. According to Shortcuts Lib, this pattern is the backbone of efficient text interaction across editors, browsers, and dialog boxes. When a text field, document, or webpage has focus, pressing the appropriate keys will highlight the entire target, enabling quick actions such as copying to the clipboard or replacing content in one pass.

JavaScript

// Basic example: select-all in a textarea
const ta = document.querySelector('#myText');
if (ta && typeof ta.select === 'function') ta.select();

Bash

# Linux/macOS: test select-all in a GUI window (requires X11 or accessibility tools)
xdotool key --window "$(xdotool getactivewindow)" Ctrl+a

OS-specific mappings and quick tests

The OS determines the exact keystroke, but there is a consistent mental model across apps: the command to select all. On Windows and Linux, Action: 'Select all text in the focused control' with Windows: Ctrl+A; Mac: Cmd+A; Context: 'Text fields, editors, browsers'. On macOS, dedicated apps may use different shortcuts, but Cmd+A remains the standard in most situations. The following tests illustrate how you can verify the behavior in real environments and show how to simulate the keystroke for automated testing.

APPLESCRIPT

-- macOS: simulate Cmd+A to select all in frontmost app
tell application "System Events" to keystroke "a" using command down

JavaScript

// Browser test: log if Ctrl/Cmd+A is pressed
document.addEventListener('keydown', (e) => {
  if ((e.ctrlKey || e.metaKey) && e.key.toLowerCase() === 'a') {
    console.log('Select All pressed');
  }
});

Web and app integration: programmatic selection

Selecting all text in web contexts can be done with simple DOM APIs. For inputs and textareas, the element's select() method is the most straightforward approach. For contenteditable regions, you can build a range and set the selection to cover the node contents. These techniques enable developers to implement a consistent Select All behavior in web apps, wikis, and forms.

JavaScript

// Select all in a contenteditable or input
function selectAll(el){
  if (typeof el.select === 'function') {
    el.select();
  } else {
    const range = document.createRange();
    range.selectNodeContents(el);
    const sel = window.getSelection();
    sel.removeAllRanges();
    sel.addRange(range);
  }
}

HTML

<textarea id="notes" rows="4" cols="50">Sample text</textarea>
<button onclick="document.getElementById('notes').select()">Select All</button>

JavaScript

// For contenteditable
const ce = document.querySelector('[contenteditable="true"]');
ce.focus();
document.getSelection().removeAllRanges();
const r = document.createRange();
r.selectNodeContents(ce);
document.getSelection().addRange(r);

Automating select-all in workflows

Beyond manual keystrokes, you can automate Select All in scripts and automation tools. This is helpful for batch testing, data entry, or rapid UI interactions. Cross-platform approaches exist, with OS-specific variants shown below. Always ensure the target app is in a state where the focused element receives the keystroke.

Python

# Cross-platform automation with PyAutoGUI
import platform
import pyautogui

def select_all():
    if platform.system() == 'Darwin':
        pyautogui.hotkey('command','a')
    else:
        pyautogui.hotkey('ctrl','a')

if __name__ == '__main__':
    select_all()

APPLESCRIPT

-- macOS: select all in active app
tell application "System Events" to keystroke "a" using command down

Bash

# macOS: simulate Cmd+A with AppleScript from the shell
osascript -e 'tell application "System Events" to keystroke "a" using command down'

Accessibility considerations and pitfalls

Accessibility should guide how you implement Select All. Some screen readers and accessibility tools expect linear, predictable focus management rather than sudden mass selection. Always ensure the target control is focused before issuing the shortcut, especially in complex UI layouts. For contenteditable regions, prefer programmatic selection via range APIs to give assistive tech predictable focus; in forms, rely on element.select() when available to respect native behaviors.

// Focus then select for accessibility
const el = document.querySelector('#username');
el.focus();
if (typeof el.select === 'function') el.select();

Steps

Estimated time: 20-30 minutes

1
Identify the target area
Determine where you want to select text: a field, a page, or a document. Verify that the element can receive focus so the shortcut will apply.
Tip: Make sure the target control is visible and focusable.
2
Apply the shortcut
Press the appropriate key combination for your OS: Ctrl+A on Windows/Linux, Cmd+A on macOS.
Tip: If nothing happens, try clicking the area first to give it focus.
3
Verify the selection
Check that the entire intended content is highlighted before copying or editing.
Tip: In long documents, a quick second press can confirm full coverage.
4
Test across apps
Repeat in a browser, text editor, and a dialog to ensure consistent behavior.
Tip: Some apps override shortcuts; consult app menus if needed.

Pro Tip: Memorize both OS versions (Ctrl+A, Cmd+A) for cross-platform fluency.

Note: If a shortcut is overridden, try the Edit menu's Select All option.

Warning: Avoid using Select All in password fields or sensitive dialogs without caution.

Pro Tip: After selecting, immediately press Ctrl+C or Cmd+C to copy the entire content.

Prerequisites

Required

A computer with Windows 10/11 or macOS (recent version)↗
Required
A modern web browser or text editor to test shortcuts
Required
Basic command-line knowledge
Required

Optional

Optional: A Python environment or Node.js to run scripting examples↗
Optional
Optional: Internet access for reference materials
Optional

Keyboard Shortcuts

Action	Shortcut
Select all text in the focused fieldText fields, editors, browsers	`Ctrl`+`A`
Select all content on the current pageIn most apps and browsers	`Ctrl`+`A`

Questions & Answers

What is the universal keyboard shortcut to select all text?

The standard is Ctrl+A on Windows/Linux and Cmd+A on macOS. It generally selects all text in the active field or document across most apps.

Do all apps respect Ctrl+A or Cmd+A?

Most apps honor the shortcut, but some programs override it or implement context-specific variants. If in doubt, check the Edit menu or app settings.

How do I select all content on a webpage using the keyboard?

Use the same keys: Ctrl+A on Windows/Linux or Cmd+A on macOS. It will highlight the entire page content in many browsers.

What if Select All doesn't work in a dialog?

Ensure the dialog input has focus and try again. If it still fails, use the app's menu to Select All or check for an app-specific shortcut.

Can I customize the shortcut?

Yes in many apps, you can rebind shortcuts in preferences. OS-level rebindings exist on macOS via System Settings, while Windows apps rely on app-specific options.